Android Emulator very slow on Ubuntu 20.04

My Android emulator runs very slow on my Ubuntu machine. I need it to run faster, because some apps are slowed down so much, that they change their behaviour (they use the camera).

System specs:

-x86_64-Intel(R) Core(TM) i7-5600U CPU @ 2.60 GHz-20GB Ram-512Gb HDD

I use Ubuntu 20.04 and Android Studio 4.1.1 (fresh installation).I use this AVD: Pixel2 1080 x 1920: 420dpi API 28 Android 9.0 (Google X86_ARM) CPU/ABI: x86In the extended menu I chose Graphics: Hardware - GLES 2.0. I also disabled GPS, audioInput and audioOutput with no performance improvements.I did not try this, because selecting Hardware - GLES 2.0 worked for me and the avd started normally (but still very slow).

Other system images are equally slow though.

I tried:

sudo modprobe msrsudo rdmsr 0x3A

and it returns 5, so VT-X is enabled

Is the hardware the bottleneck, or is something configured wrongly? Maybe it is the HDD that slows the emulator down? I tried running the emulator on Windows and it's insanely fast. The windows machine is stronger though.

Update 11.12.2020:I also verified my KVM installation using this command:

./emulator -avd Pixel2Api28Arm -accel-check

It returned this:

28Arm -accel-checkaccel:0KVM (version 12) is installed and usableaccel

So this does not seem to be an issue.